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The mechanism of vasculopathy in systemic lupus erythematosus (SLE) remains unclear and the evidence for a direct pathogenic role of anti-double-stranded DNA antibodies (anti-dsDNA) is not strong. Our study aims to determine whether anti-dsDNA exerts any effect on the expression of adhesion molecules on endothelial cells. IgG was purified from 17 patients with SLE (median anti-dsDNA titer, 404 IU/ml)...